As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MSP - FLT 1446 - AFTER TAKEOFF MSP/DFW - FLAPS WOULD NOT RETRACT FROM EIGHT DEGREE ANGLE. AIRCRAFT RETURNED MSP AND LANDED WITHOUT INCIDENT. REPLACED FLAP CONTROL DATA UNIT. ACCOMPLISHED ALL REQUIRED CHECKS. SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)